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United States Patent | 6,053,227 |
Robeson | April 25, 2000 |
An emergency traction device is easily and securely fitted on vehicles having tires of different diameters and widths. A single winch sizes and secures the traction device for the proper tire diameter and then for the proper tire width.
Inventors: | Robeson; Palmer Edward (1832 Birch Rd., McLean, VA 22101) |
Appl. No.: | 258898 |
Filed: | March 1, 1999 |
Current U.S. Class: | 152/225R; 152/216; 152/218 |
Intern'l Class: | B60B 015/00 |
Field of Search: | 152/213 R,225 R,226,217,218,216 301/41.1,42,43,44.1,45,46,51 |
1327538 | Jan., 1920 | Etter | 152/218. |
2212076 | Aug., 1940 | Rollings | 152/216. |
2343131 | Feb., 1944 | Austin | 152/228. |
2397277 | Mar., 1946 | Lawrence | 152/218. |
2423759 | Jul., 1947 | Edwards | 152/225. |
2434017 | Jan., 1948 | Snedeker | 152/213. |
2453273 | Nov., 1948 | Scott | 152/225. |
2456544 | Dec., 1948 | Varner | 152/225. |
2598298 | May., 1952 | Pindjak | 152/225. |
2640522 | Jun., 1953 | Schroen | 152/228. |
2873783 | Feb., 1959 | Higgins | 152/225. |
2910105 | Oct., 1959 | Binegar | 152/225. |
2981303 | Apr., 1961 | Hayes | 152/228. |
3019830 | Feb., 1962 | Shelby | 152/225. |
3053302 | Sep., 1962 | Bopst, III | 152/226. |
3112784 | Dec., 1963 | Montenare | 152/216. |
3249143 | May., 1966 | Scott | 152/225. |
3736970 | Jun., 1973 | Clark | 152/226. |
3847196 | Nov., 1974 | Gomez | 152/226. |
3891018 | Jun., 1975 | Hyggen | 152/225. |
4089359 | May., 1978 | Jones | 152/218. |
4098314 | Jul., 1978 | Welsh | 152/216. |
4122880 | Oct., 1978 | Hyggen | 152/216. |
4180115 | Dec., 1979 | Yamagishi | 152/225. |
4209049 | Jun., 1980 | Regensburger | 152/216. |
4735248 | Apr., 1988 | Cizaire | 152/218. |
4747438 | May., 1988 | Joung | 152/218. |
4862936 | Sep., 1989 | McDonough | 152/216. |
4886100 | Dec., 1989 | Parker, III | 152/219. |
4974653 | Dec., 1990 | Zelent | 152/216. |
5254187 | Oct., 1993 | Metraux | 152/216. |
5513684 | May., 1996 | Laub | 152/216. |
5735980 | Apr., 1998 | Robeson | 152/216. |
Foreign Patent Documents | |||
3347566 | Aug., 1984 | DE | 152/225. |